LTC3528EDDB#TRMPBF

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The LTC3528EDDB#TRMPBF is a high-efficiency synchronous step-down of resistor temperature coefficient. The component comprises two DC to DC converters, switching FETs and highly reliable buck regulator. It operates from 4V to 70V input range and delivers up to 95W of continuous output power with an output voltage ranging from 0.44V to 5.5V. This component is capable of achieving efficiencies as high as 95%, with fast transient response and a low-noise solution for extreme voltage applications. The component is suitable for applications such as automotive, industrial, computing, and telecom.

The LTC3528EDDB#TRMPBF is a PMIC (power management ic) which belongs to the category of voltage regulators and DC to DC switching regulators. It is a step-down, synchronous buck regulator specifically designed for wide input voltage and very low-noise performance. It combines high efficiency and an integrated, configurable LDO to minimize noise while providing a low quiescent current.

The LTC3528EDDB#TRMPBF has four switches and integrated power MOSFETs to achieve a high switch current efficiency over a wide input voltage range. It features internal compensation, pulse-skipping and pulse-frequency modulation (PFM) modes of operation, and an array of adjustable current limiting and overtemperature protection. On-chip termination and bias elements provide greater design flexibility, and the pinout is compatible with other LTC DC/DC buck regulator families.

The LTC3528EDDB#TRMPBF is also very efficient in PFM mode since the efficiency does not depend on load with a wide load range, where the peak efficiency is maintained within a few percent always. It allows only up to 50% peak current in PFM mode. The inductor ripple current is also limited in PFM mode, further optimizing for small size and low noise.

The principle of operation of the LTC3528EDDB#TRMPBF is based on its buck regulator circuitry. The switch can be regulated by varying its PWM frequency or its duty cycle or by switching between burst and skip modes between pulses. The switching frequency is set by the external resistor or controlled by the internal oscillator, allowing the voltage to be regulated accurately while consuming minimal power at low output current conditions. Ideally, the input voltage is applied to the input pin of the regulator, which is then switched onto the output stage to create the desired output voltage. This buck regulator can also be synchronized externally and allow a wider range of frequencies, improving performance and efficiency.

The LTC3528EDDB#TRMPBF is a DC to DC switching regulator which is versatile and has a wide range of applications. It is ideal for use in automotive, industrial, computing, and telecom applications, specifically those demanding very low noise and high efficiency. The device delivers up to 95W of continuous output power, is configurable with multiple operating modes, and offers high efficiency and fast transient response. For extreme voltage applications, the LTC3528EDDB#TRMPBF provides a low-noise solution that is highly reliable and cost-effective.

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